Relaxed Fit: Drapes loosely on the body. Men's relaxed fit pants have a bit of extra room through the hip, thigh, lower leg, and cuff.

How to Measure:

Measurements refer to body size, not garment dimensions. For best results, take measurements over your underwear.

Chest:

Measure under your arms, around the fullest part of your chest.

Waist:

Measure around your natural waistline, keeping the tape a bit loose.

Inseam:

Inseam varies depending on style; when lengths are offered "regular" is 32in (81cm) and "long" is 34in (86cm) unless otherwise noted. Using pants that fit well, measure the crotch seam to the bottom of the leg.

Sleeve:

Measure from the center of your back to your wrist with arms held out.

Furnace-like warmth all winter.

When the temps are in the single digits and you know the conditions are going to be bulletproof, slip into the Patagonia Men's Capilene Thermal Weight Bottoms before heading to the hill. The stretchy, soft Polartec Power Grid fabric keeps you insanely warm while maintaining high-breathability, has a smooth face for easy layering, and is treated with Polygiene to fight off nasty odors. Flatlock seams minimize chafing and the gusseted crotch adds comfort and enhances your mobility on the slopes.

Frequently purchased together

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Dad approved!

Familiarity: I gave it as a gift but have feedback to share

Fit: True to size

Bought these for my dad who is currently living through the gnarliest, snowiest and coldest winter ever in Bend OR and he is obsessed with this baselayer. He wears it all the time and LOVES how thin the base layer is but how it really packs the heat. ( I have womens version of these and I totally agree!)

He is 6'2'' and about 210lbs and the large fits him well as a nice form fit.

Sarah EdwardsHeight:5'11"Weight:145lbs

review on February 10, 2017

Cheap Waistband

Familiarity: I've used it several times

Fit: True to size

Fairly warm, but would not goes as far as to describe them as "furnace-like warmth". Writing the review mainly due to my disappointment with the waistband. For as expensive as these are, I'd expect a waistband that didn't bunch. After wearing these with the waistband bunched, it seems the waistband is now permanently deformed. I had the same issue with a pair of Patagonia underwear. It's crazy to me that cheap underwear can get a waistband right, but Patagonia can't. Complaining about a waistband might seem "nit picky", but once the waistband gets deformed, these bottoms are uncomfortable to wear.

I've previously purchased the top counterpart to these bottoms and would highly recommend the tops.

Daryn P.

review on January 18, 2017

Perfect layer for under PowSlayer bibs

Familiarity: I've used it several times

Fit: True to size

Size Bought: Medium

These are the only layer I wear under my PowSlayer bibs, they are plenty warm on cold dawn patrols and not too hot when it warms up.

Charles DenneyHeight:6'1"Weight:168lbs

review on January 9, 2017

Lightweight Warmth for Cold Days

Familiarity: I've used it several times

Fit: True to size

Size Bought: Medium

One of the best baselayers I have ever owned. Not only is the inside comfy but it is so warm. When I first put this on, I immediately noticed it trapping heat and warming me up, but it also breathes enough that I can leave it on and not suffocate in a sauna. I can wear these under my un-insulated ski pants and stay warm without trouble. I typically wear mediums and this was no exception. It fit great. It has a slim snug fit but with out being to form-fitting or revealing. These keep me warm without being too bulky and on frosty days, I can wear them under a pair of pants to stay warm and comfy. My new go-to baselayer.

Zach WindsorHeight:5'7"Weight:170lbs

review on December 31, 2016

Comfy, Cozy, Warm

Familiarity: I've used it several times

Fit: True to size

Size Bought: M

Great to wear wherever you are!

Matthew LundbergHeight:5'11"Weight:160lbs

review on December 28, 2016

Now Dad Won't Ever Leave The House.

My dad is a bit of a baselayer connoisseur, and the Capilene Thermal Weights passed his test with flying colors. He's a tall dude at around 6'5" and 185lbs, and the XL was a great fit for him--long enough in the legs and sleeves without being too baggy. Unfortunately, his wife and I also got him the one-piece suit for lounging around, and we're entirely convinced he won't ever leave the house again. Yep, they're that cozy.

Zoe ZulaufHeight:5'9"Weight:140lbs

review on December 20, 2016

Good for Apres ski

Great everyday long underwear for skiing or snowboarding. These are the best long underwear that I have ever owned. They have a looser fit than traditional long underwear. The thermal weight Capilene has the perfect amount of insulation and breathability. The only time I would wear anything heavier than this would be a -20 degree day.

Pete OBrien

review on October 27, 2016

Comfy

Familiarity: I've used it once or twice and have initial impressions

Fit: True to size

Size Bought: Medium

Mostly was looking for a base layer under my ski pants, so haven't used them yet, but looking forward to using them. They are very comfy and seem very warm, stoked for ski season to start!

Scott SherwoodHeight:5'11"Weight:150lbs

review on October 6, 2016

Comfortable

Fit: True to size

These are light and extremely comfortable! Great for lounging or shredding the slopes.

Brock Price

review on April 13, 2016

Sizing is the bane

Familiarity: I've put it through the wringer

Fit: Runs large

Size Bought: XL

I wear XL bottoms. Football legs and etc. Bought an XL Arcteryx Phase SV, and could not fit into them. Too tight.

These Pagatonia Thermal in XL, however, are somewhat uncomfortably loose. Should've got an L.

The insulation of the bottoms is interlaced, one line of substantial fleece and one line of next-to-nothing-thin face fabric. It doesn't seem to have affected warmth in the most significant way though. Would just feel a little weird around the knees if you are sensitive to it.

This particular weave, however, will leave lines of red marks on your skin after exertions, and sometimes they itch.

Craftsmanship is the highlight. Durable. Design has good attention to details.

KHeight:6'3"Weight:200lbs

review on February 16, 2016

Comfortable and Warm!

Familiarity: I gave it as a gift but have feedback to share

Fit: True to size

Size Bought: Small

Gave these to my dad! This is his review: "I have several sets of medium and heavy weight synthetic fiber long johns. So i was a little skeptical when the Patagonia Capilene Thermal Weight set arrived. They seemed a little flimsy and light. WRONG! They are the warmest, most comfortable set I have ever owned! I'm ordering another set and throwing all the others away".

I think it's safe to say he liked them.

Emily NollHeight:5'8"Weight:145lbs

review on January 12, 2016

From Loungin to Lift Laps n' Skin Tracks

Familiarity: I've put it through the wringer

Fit: True to size

Size Bought: Small

First of all, let me thank Patagonia and Backcountry.com for selecting me to test and review the Capilene Thermal Weight bottoms.

I was really excited to get my hands on these and see what improvements Patagonia made with their new line of base layers. I've been using an old pair of Patagonia base layer bottoms for the last 3 ski seasons and I love them. In fact, it's really the only base layer bottom I've used and needless to say, they are showing signs of wear. With these it was no surprise to find that Patagonia has made an already awesome product into something better.

The fit is spot on for me and the cut is just so comfortable. I lounge around the house in these, sleep in them while camping, and of course use these for skiing/snowboarding and any other cold weather activity. Just the perfect all around bottoms. The fabric is so cozy with the interior being fleece (just like the Thermal Weight Top http://www.backcountry.com/Store/catalog/productLanding.jsp?productId=PAT00VN&contentIdSocial=review-atg542906) and it does an outstanding job of breathing to regulate body temp. I have not once over-heated in these babies no matter the activity.

I think the only thing I would like is for them to fit a little more snug but this is more of a personal preference. Overall, these do what they are suppose to and do it well. Even when the temps are in the single digits, these keep me warm on any adventure. A great product and will certainly be in my closet for many years.

Zach LuchsHeight:5'8"Weight:145lbs

review on December 28, 2015

So cozy

Nice fleece thermals, feel great against the skin!

Morgan Hautala

question on December 21, 2015

Are these as thick as the R1 hoody grid material? I am concerned I might overheat if they are. I have the light and midweight Capilene leggings and love both so far but looking for something warmer for those really cold days with light to moderate activity. Thanks.

Jeff M.

answer on December 22, 2015

Jeff,

This is basically a lighter version of the R1, i think you'll be psyched. It definitely has some good warmth when you have a layer on top of it, and then it breathes really well when it's on it's own.

Ty Nelson

answer on December 23, 2015

To echo what Ty said, these are the warmest in the line and a replacement for the old expedition weight capilene. For reference these would be great for a cold day skiing the resort, too warm for me touring, and a great legging for winter running. Let me know if you have any other questions on this or other Patagonia items.

Dan Gates

photo on December 21, 2015

Anytime Comfort

Whether I'm lounging, camping, hiking, or getting after it on the local hill - these are my go to bottoms

Zach Luchs

comment on December 22, 2015

Thank you for your review Zach. Epic picture!

Sarah Savala

review on November 23, 2015

The love and hate them

Familiarity: I've used it once or twice and have initial impressions

Size Bought: medium

The Good: Very warm and comfortable even in below freezing temps in the back country, I wouldn't hesitate to wear these when I go on my snow outing for search and rescue later this year. My recent outing was below freezing 26f and windy(I know this isn't cold to some, but in a stop-go-stop go with lots of "hurry up and wait" work environment 26f will get to you) this kept my legs comfortably warm. They dry quick enough, much better than old school non-grid fleece, Polygiene does work well and sets Patagonia apart from other grid-fleece base layers. This is the reason why I prefer patagonia.

The Bad: " has a smooth face for easy layering" isn't all that true with these, it will still "grab" your mid-layer if it isn't slick.inside. I would not recommend for non-stretchy pants. The material waive is subject to "runs" (think pantyhose runs) (-½ star) Patagonia decided to add extra advertising to the waistband, men's underwear are already billboards with the company's logo or name all over them as it is so I generally discourage this in my ratings, the Patagonia capilene thermal weight isn't too bad about this so I will leave it a smaller hit (-½ star)

The ugly: This is were I have a bone to pick with Patagonia with their new capilene series. Patagonia has seemed to developed some serious inconsistency/ quality control issues in the last/sizing. Try buying 5 pairs of the same size and try each one on, they will all fit very differently! I purchase a size medium and when I got mine, they seemed to fit okay, but the waistband was for a size large pair. It didn't feel snug at all around my 33" waist but the rest was okay. Luckily I found out there was a local Patagonia store near me that was willing to exchange them. Tried on a pair there and was perfect, but was curious and tried another pair or the same size and weight and felt like a small-medium (really tight around my thighs). I did this with their mid-weights too, tried on a few pairs, they have the same issues too (.-1star) TL;DR the product fit should have a "Varies" option for these.

KittensHeight:6'Weight:160lbs

comment on December 17, 2015

Fact on Patagonia sizing: they have the worst concept on printed size vs arm/leg lengths. I don't know who (or what) their "model" is, but it needs to be replaced.